Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Robert Fennell, ATC, M.S.
Athletic Trainer in Atherton, CA · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1023285863
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Registry record
Entity type Individual (Type 1)
Name Mr. Robert Fennell
Credential ATC, M.S.
Sex Male
Practice address 150 Valparaiso Ave, Atherton, CA, 94027
Phone (650) 473-4035
Enumeration date May 12, 2008
Last updated in NPPES Dec 15, 2016
Taxonomy & licenses
2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 096.002601 (IL) Secondary
2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers Primary
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Robert Fennell?
Robert Fennell is registered in NPPES with the primary taxonomy of Athletic Trainer. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-12-15.